Question

Which one of the following is odd?

• A. Micropyle
• B. Embryo sac
• C. Nucellus
• D. Pollen grain

Answer 1

The correct option is D Pollen grain

• Micropyle is a small opening on the surface of an ovule.
• Embryo sac is the structure within a plant ovule that contains the egg cell.
• Nucellus is the central part of an ovule, containing the embryo sac.
• Pollen grain is a microscopic body that contains the male reproductive cell of a plant.

As all other structures are part of the ovule apart from the Pollen grain, therefore it is an odd one out. Hence, option D is correct.